This article captures amazing insights and focus on big-picture by none other than former spy of India: B. Raman. He illustrates with candid details on Pakistan's illusions starting from history school text books to genocide of Sunnis in Pak to wars / proxy wars on India to helping US by nabbing some of their own. He cautions US on being sucked up by Pak's illusions. A delightful read:
http://ramanstrategicanalysis.blogspot.com/2010/02/us-being-sucked-into-pakistans-world-of.html